Cisco NAC Authenticating Printers and other Devices

I have a customer who is looking to implement NAC. While the Windows machines, Unix machines and software products are not a problem, the customer has an issue with the authentication of Printers and mobile wireless devices etc on the network. Is implementing printers in a NAC enabled network hard or even the wireless mobile devices etc.

2. You can use the NAC profiler to monitor the network and classify these devices into roles. This will update the NAC manager device roles automatically with the role you define for that traffic pattern. Its another device to install and managed but it help managed a large and fluid environment.